Hand tools



E. c. APPLEGATE 2,742,744

HAND TOOLS Filed March 19, 1954 April 24, 1956 INVENTOR.

"vi-s 2,142,744 ntANDTooLsr l n Earl C. Applegate, Cl'iicago,lll..C' u' l Application March 159, .1954,sertieINV 1o claims. (Cust ist) The present inventionrelates to an'implement'commonly'v known as a hand sander, wherein a strip off-ct'yu-atedk abrasive material, such as sandpaper and thejlike,.isvse curely held on a holderv of such size `and shape` that it may be readily grasped by the user and manually operated in a varietyof-surface nishing operations.

o; 417,42() L A tending;f.orwfardly therefrom.- .The end'portironvzlr ing; into A thefsocket and acrossY the Vgroove 18,. so ylestoy {'.Rfes

abrasivegs'uch'as sandpaper or theflike, which'prefer-ably,V

cegfnumeraljr24 (designatesvv zof coated conforms in widthto the rdimension ofthe block measixredk between the sidewalls 10 and 12...Y The strip'2'4 isfalso,

of such lengthr .as to be wr'appedfabout the .bottomside l 15v and to provide an end portion 25 ,reaching rearwardly acrossfthe surface ofvthetop wall. and ".intotliesocket,

. preferably inclined forwardly and Youtwardly from the .The objects of this invention are to provide an im- Itis also an important Yobject this invention toproe y. 'vide'Y clamping means for nsecurely holding the ystrip ofkv `proved implement-of the character indicated which will .l be particularly simple in constructionfandeconomicallto lmanufacture, and which will bedurable ndr efficient me abrasive' material against unintentional removal from the quickly and easily replacing a used strip with a fresh one; Other andfurther features and'objectsof the inventionV i will be more yapparent to those lskilled inthe art upon'a E consideration of the accompanying drawings and follo w ing specifications, wherein is disclosed certain exemplary em'oodir'nefntsl of. the invention, with the understanding, however,VK that suchv changes maybe'madetherein asv fall r within the scope ofthe appended claims, without departi ing from `the spirit oftheinvention. J Y

In the'drawingsz; o Y rf i Fig. 1 is a `top plan view, with parts in section, of an 4,implement for sanding operations constructed in accord# ance with a preferred embodiment of this invention.

Fig. 2 is a sectional view taken along line 2-2 of Fig. 1. Fig. 3 isa top perspective view of the clamping-means as shownin Fig. 1.

Fig. 4 is a fragmentary sectional view showing a modified form of clamping means.

With more particular reference to the drawing, the specific embodiment of the invention as shown in Pigs. 1,

2 and 3 includes a holder in the form of an elongated block of wood or the like having front and back walls 10 and 11, respectively, opposed longitudinal side walls 12 and 13 which cooperate to define top and bottom sides 14 and 15, respectively, of generally rectangular plan.

A socket formed in the top wall 14 intermediate of and spaced from the front and back wal1s"10 and 11, and intersecting vthe side wallsp12 and 13, presents a bottomface 16 which terminates forey and aftin an undercut area or groove18 and an opposite undercut'area defined A by a rearwardlyoifset back wall 19 and anoverhanging j Vj lip 19a. A plate 20, of metal or other suitable material,

insertable` inA the socket is provided with an edge 21.

which is normally urged toward a position of engage- .ment in the groove 18 under-stress. of an expansible vpad 22'of rubber or the like interposed between an upstanding ange 23on the plate 20 parallel to the edge 21l and the surface of the back Wall 19. The pad 22 is preferably` of such dimension as to till theV space between lip 19d and the surface of the bottom wall 16 opposite thereto and is suitably secured by adhesive or the like to the back wall 19.

` .applied bythe rubber pad 22 acting against' h and an endpoition 26 .reaching inithe/ oppositegdir'ectiol'i; for. ent'ry in a4 slot v27 formed atfthe roundedjuneture l of the back wallll; and 'the surfaceof thegt'op. wall 14px;

underlie the ,edge 21..'of the -plate 20, is'accordinglylocked :against @withdrawalfrom the groove 18 under Apressure Hanse 23 of theplate 20.1-

,The waiter' the sket emailing 'fhegraovels-is bottom 16;- yThus during insertion of the plate20 toward a positionl toclamp the underlying end 25 of the abra; sivestrip 24'2while the flange 23.is inV abutmentfwiththe [rubber pad '.22fsuch inclined surface 'ofthe socket wall' cooperates withfthe edge 21 of vthe .plate tocompress the pad 22 as plate ispressed toward; the ',.bott'oxn 16. Y i The.fripieaarensageniem deveiapa baweenjtne .edge zr. of the platefand the end 25 of .the strip ,24,jwhile'the plate vvis depressfed .ii1to a'-v seated lockingv positionrin'ihe socketgalsoaids-in tensioning the .stripinfo av tau state. 'L'..T.flilfhe1-lfai1-ifte hldlflg-.ffh Plaie@ fbein'g'm'ovedj toward and'awyl'fr'om a clamping'pmsition. l 4- in thei socketfthefplate 2i) Aisfolded or ben'twupoiifitself asat 28y to forma finger engaging tab extending lparallel hlle to the edge 2 1.- Y

The surface of the top side of the block between the socket and theifrmt wall 10 is covered with alayer 3,0v of suitablerelatively soft,high ly resilient material, such for example, as sponge rubber. Not onlyV does this layer;`

30 provide a yieldable cushion for the abrasive strip posif "tioned over the Varea occupied by said layerforvthe purv pose of providing greater `accessibilityrto workv surfaces i l of irregular contour but to act as an expansion member' to-increase tension on the abrasive strip when the layerv 30 is compressed. l Y

The bottom Ywall includes a forward area 31 which 'is inclined forwardly and upwardly in relation tothe rearward portion of said bottom wall. The latter portion is preferably covered with a layer of cork 32 or similar material, against which the abrasive strip 24 has support across said portion.

Fig. 4 illustrates a socket and clamping plate of somewhat modied construction wherein the back Vwall of the socket presents a at face 33 inclined forwardly from the junction with the bottom 16 throughout the depth of the socket so as to present a rigid abutment for engagement with the flange 23 of the plate. Stress on the plate to normally urge its edge 21 into interlocked'- l engagement with the groove 18 is obtained through action of thearched area 34 which functions as a finger tab and also exerts pressure in directions of the groove and the back' wall of the socket by virtue of resistance to contraction of such arched area. w

It will vbe appreciated'from the foregoing that the Y v clamping arrangement thus provided by the present invention makesit convenient Vto use either the top or bottom Vsidesv of the holder as a work engaging facev and that v while so keeping both top and bottom sides readily applicable to such work the clamping arrangement assures' the maintenance of an abrasive strip in firmly and tautly bound engagement with thehoider. Furthermore, the clamping arrangement of this invention provides for easy removal of the abrasive strip and for easy replacef ment of a fresh strip.

i Patented Apr.Av 24,

What is claimed is:

1. In a hand implement for performing abrading operations, a generally rectangular block-like base having opposedtop and bottom walls, a socket opening through one of said walls presenting a bottom face in undercut relation to the opposed wall surfaces of the socket rising fromsaid bottomface, a strip of abrasive coated material wrapped about one of the aforesaid walls of the base remote from the wall containing said socket, means for anchoring one end of said strip away from said socket, and-means cooperating with said socket for locking said other end'of the strip in said socket including a plate presenting an edge portionrengageable with the junction ofon'ef said opposed wall lsurfaces Vof ,the socket and said bottom face of the socket, and resilientrneans engaging said plate along a second edge portion'. parallel to said rs'tnamed edge portion and the other `of-said opposedlwall surfaces of the socket tov urge said'irst named edgeportion of the plate toward said junction.

2. In a hand implement as defined in claim l wherein said resilient means comprises a` compressible pad having abutment with the wall surface ofthe socket opposite the wall surface which faces the first named edge portion of the plate.` 4

3. In a hand implement as defined in claim l wherein the plate is provided with a ange at theedge thereof opposed tothe first named edge of the plate, and said resilient means comprises a compressible pad linterposed between said ange and the wall surface of the socket opposite thereto. 4. In a hand implement as defined in claim 1 wherein said socket extends the full dimension of the block measred between the longitudinal edges of the wall containing said socket.

5. In a hand implement as defined in claim l wherein said plate is provided with a nger tab.

6. In a hand implement as defined in claim l wherein said plate is folded'upon itself along a line parallel to said edge portions of the plate.

7. In a hand implement as defined in claim l wherein said resilient means includes an area of the plate folded upon itself along a line parallel to said edge portions of the plate. Y

8. In a hand implement as defined in claim l wherein the wall surface of the socket facing saidfirst named edge portion of the plate is inclined toward the opposite wall surface ofthe socket in the direetion'of the bottom face of said socket.

9. In a hand implement as defined in claim l wherein the wall of the base opposite the wall containing thc socket presents a iiat areav in a plane inclined toward said wall containing the socket.

l0. In a hand implement as detined in claim 1 wherein the wall of the base containing the socket is provided with a facing of rubber throughout au area extending from one end of the base to position adjacent said socket.

References Cited in the file of this patent UNlTED STATES PATENTS 699,242 Rockstroh May 6, 1902 1,183,444 Fisk May 16, 1916 1,501,192 Severns July l5, 1924 1,844,996 Walker Feb. 16, 1932 1,927,574 Parks a Sept. 19, 1933 2,400,929 Hein May 2S, 1946 -2,560,008 l Steward July l0, 1951 

